Ens Lexus Toyota, Saskatoon.
123.05 Canadian
Heavy duty.
Install on Monday hopefully.
GB
123.05 Canadian
Heavy duty.
Install on Monday hopefully.
GB
Bj74 Solid fan kit Picture
- Thread starter Gold Boy
- Start date
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Were you having problems with the factory setup?
Just curious as I drove mine around last week in 40 C with the aircon on full bore and the gauge stayed way under half using the clutch fan.
Just curious as I drove mine around last week in 40 C with the aircon on full bore and the gauge stayed way under half using the clutch fan.
- Thread starter
- #3
Here in the summer (35c - 40c) I drive mine 5000ft up very steep mountain roads some times in 2nd, the clutch fan works fine. But the volume of air going through the rad to warm the fluid in the clutch fan sometimes fools the clutch, therefore delays the clutch fan in engauging thoe the fan always engauges long before its to late. And I also towing a sailing boat. I do not totaly trust clutch fans and I do not like electric fans
Have you driven your TLC up steep mountains in 35c? What speed was you going?
GB
Have you driven your TLC up steep mountains in 35c? What speed was you going?
GB
crushers
post ho
HZJ75
drove this unit for a year with solid fixed fan and absolutly no problems at all, the temp stayed at half no matter how hard i drove the truck. bought a brand new clutch fan and installed it in Vancouver. drove halfway up the coqu and the truck was almost to the red, pulled over and reinstalled the fix fan and the temp stayed at half the rest of the way back to Calgary.
i do not trust clutch fans and do not trust the elec fans.
this is just my personal experience.
cheers
drove this unit for a year with solid fixed fan and absolutly no problems at all, the temp stayed at half no matter how hard i drove the truck. bought a brand new clutch fan and installed it in Vancouver. drove halfway up the coqu and the truck was almost to the red, pulled over and reinstalled the fix fan and the temp stayed at half the rest of the way back to Calgary.
i do not trust clutch fans and do not trust the elec fans.
this is just my personal experience.
cheers
- Thread starter
- #5
The down side to a solid fan.
#1 - Can't use your 74 as a submarine with solid fan attached.
#2 - Grill must be semi coverd when its -20C.
A solid fan, the simplest safest way to cool your 13BT
GB
#1 - Can't use your 74 as a submarine with solid fan attached.
#2 - Grill must be semi coverd when its -20C.
A solid fan, the simplest safest way to cool your 13BT
GB
Gold Boy said:
All good reasons. I was just wondering why,I thought it may have been for trail use only.
Anythings better than an electric fan
Nope I havent driven up any 5000 ft mountains lately.
The tallest mountain in oz is only 4000 ft and its 3000 klms away
.I did drive it in low range 2nd and 3rd recently in hot weather through thick sand fpr 20 miles and it passed with flying colours. I purposely left the tyres inflated to make it run hotter
Last edited:
- Thread starter
- #7
roscoFJ73 said:All good reasons. I was just wondering why,I thought it may have been for trail use only.
Anythings better than an electric fan
Nope I havent driven up any 5000 ft mountains lately.
The tallest mountain in oz is only 4000 ft and its 3000 klms away
Call this crazy.... but I think a hybrid clutch fan would be great... All you would do would insert a pin to lock your fan and remove to free clucth...
Thanks
GB
crushers said:
Did you consider it may have been a problem other than the clutch fan such as a blocked radiator ect?
Comparing gauge readings is not an accurate way to assess the engine temp but mine stays under half at extended high speed cruising and about 1/3 at low speeds or off road.
If my 1HZ sat on half I would consider something wrong.
crushers
post ho
why would it change only when the clutch fan was installed?
the gauge is accurate since i owned this truck since 1998 when i bought it and the gauge readings never changed when i had it, when Jeff owned it and when i bought it back and now Paul has it. so for 8 years the gauge has always read the same. for the breif couple hours i had the clutch fan on the gauge would flutuate as the fan kicked in and out, then on the choqu (which is asteep long bloody hill) the fan did not keep up with the cooling needed so i switched the fixed fan back on and the temps never changed again.
are you suggesting the rad has been plugged for 8 years?
cheers
the gauge is accurate since i owned this truck since 1998 when i bought it and the gauge readings never changed when i had it, when Jeff owned it and when i bought it back and now Paul has it. so for 8 years the gauge has always read the same. for the breif couple hours i had the clutch fan on the gauge would flutuate as the fan kicked in and out, then on the choqu (which is asteep long bloody hill) the fan did not keep up with the cooling needed so i switched the fixed fan back on and the temps never changed again.
are you suggesting the rad has been plugged for 8 years?
cheers
Was the clutch fan switching on and off on a hot day? Especially when the engine was overheating as you say, sounds like it was not working correctly.Of course the direct coupling should be more efficient as the clutch fan was designed to shut down some at higher revs to run quieter and to slip when the water put the weight on the blades to avoid radiator damage.. The noise factor is not really relevant with the diesel of course.With the radiators when its snow time where you guys are do they have a tendency for only part of the radiator to circulate in that type of cold? Something that is not experienced here, just wondering as some radiators seem to experience the same core pipes being blocked in similar models. cheers
crushers said:
Well the Choqu is not the only big hill in the world and 1000s of cruisers operate efficiently in the harshest of conditions using the clutch fan without overheating. .
There is a desert track running west-east across Australia that involves 2000 sandhills(I think I have that right) and Ive never known any cruiser owner to have to dispose of their clutch fan and fit a solid one to get home.
A friend of mine did 22000klms last year across oz in a fully loaded troopy most of it via the scenic route through the red centre and had no problems with the clutch fan
Maybe the solid fan does suck more air through the radiator and make up for a partially blocked radiator or some other malfunction in the coolant system.
I suppose thats ok if you dont mind the extra noise ,higher fuel consumption and robbing the engine of highway power.
My old 3F radiator had 20% of the cores blocked and was almost keeping it cool.
It had obviously been blocked for years,so why not yours?
Personally I believe its better to get to the root of the problem rather than patch it over.
crushers
post ho
the solid fan was installed at Ens when the truck was brand new, curious, if the clutch fans are so trouble free then why does ENS change out every clutch fan as soon as the truck arrives?
crushers said:
I have no idea as mine runs coolest when its not moving.
Anyway,underground mine trucks are a different case to a DD at highway speeds whiich is where you say the solid fan is most beneficial.
crushers
post ho
i will be giving a call to ENS today and find out why they switched them out...
i have never trusted the clutch fans, i am curious as to if this might be one of the causes of the 2LT head problems. the fan not coming on early enough to keep the coolant running at the proper temp...
if you love yours by all means keep running it, i am not trying to convince the masses to get rid of theirs but if i have a choice then the clutch is gone should it give me ANY concerns at all...
curious though, if the clutch fan was operating as it should then shouldn't it have kicked in and done it's job at highway hill climbing speeds? even if the rad was partially blocked the same fan dimensions should have kept the coolant at the proper temp... hence when i switched back why did hte temps go back down...
cheers
i have never trusted the clutch fans, i am curious as to if this might be one of the causes of the 2LT head problems. the fan not coming on early enough to keep the coolant running at the proper temp...
if you love yours by all means keep running it, i am not trying to convince the masses to get rid of theirs but if i have a choice then the clutch is gone should it give me ANY concerns at all...
curious though, if the clutch fan was operating as it should then shouldn't it have kicked in and done it's job at highway hill climbing speeds? even if the rad was partially blocked the same fan dimensions should have kept the coolant at the proper temp... hence when i switched back why did hte temps go back down...
cheers
crushers
post ho
i just talked with ENS and the report back is that the cluch fans had a habit of not working properly so there was reports of overheating in the mine trucks.
also in the potash mines the rads got plugged due to poor maintence and the fixed fan helped to combat this as well so it was a win/win situation...
cheers
also in the potash mines the rads got plugged due to poor maintence and the fixed fan helped to combat this as well so it was a win/win situation...
cheers
though, if the clutch fan was operating as it should then shouldn't it have kicked in and done it's job at highway hill climbing speeds? even if the rad was partially blocked the same fan dimensions should have kept the coolant at the proper temp... hence when i switched back why did hte temps go back down...
cheers
Cheers,, It should have but I believe the bi metal temperature spring on the front of the fan was possibly faulty as this adjusts the speed of the fan from the heat passing through the radiator as it gets hotter from the radiator so the pressure is increased on the fan clutch. As it cools down the silicone oil then drives the clutch until it is very cool then it will stop turning. Silicone oil loss can also cause the fan to lose power and it does not show up like an oil leak , The fan should be serviced every 12 to 24 months in hot areas.Also if the radiator is several years old it is not uncommon for 10 to 20% of the core to be partly or fully blocked even when it is well looked after..The block ,head and welsh plugs rust and also deposit scale in the cooling fluid or water.If the fan was faulty from lack of service I expect the same could be said for the radiator.
cheers
Cheers,, It should have but I believe the bi metal temperature spring on the front of the fan was possibly faulty as this adjusts the speed of the fan from the heat passing through the radiator as it gets hotter from the radiator so the pressure is increased on the fan clutch. As it cools down the silicone oil then drives the clutch until it is very cool then it will stop turning. Silicone oil loss can also cause the fan to lose power and it does not show up like an oil leak , The fan should be serviced every 12 to 24 months in hot areas.Also if the radiator is several years old it is not uncommon for 10 to 20% of the core to be partly or fully blocked even when it is well looked after..The block ,head and welsh plugs rust and also deposit scale in the cooling fluid or water.If the fan was faulty from lack of service I expect the same could be said for the radiator.
crushers
post ho
you make some good points but the fan and clutch was brand new out of the box...
cheers
cheers
So it seems there are two conflicting experiences here. One is the Aussie contingent who draw from the experience of their long distance driving on surface through a relatively hot environment as well as on mines. The other, the Canadian contingent who draws from the experience from a mine supply equipment, operating at low speeds, mainly underground. I would think there are vastly more 1HZ powered landcruisers in Australia than Ens has ever sold to the mines, but the environments are obviously different.
What are the average temperatures in Canada and in Australia?
Rosco, you are in Western Australia where you also have a lot of underground mining. What are your mines doing with their 1HZ vehicles?
Dave
What are the average temperatures in Canada and in Australia?
Rosco, you are in Western Australia where you also have a lot of underground mining. What are your mines doing with their 1HZ vehicles?
Dave
crushers
post ho
Dave,
what is your take on my experience?
if the clutch fans are to be so great then why didn't a brand new one work properly?
then again how many problems related to overheating could be fan related?
if the tempurature gauges in the land cruisers have a resister built into them so they do not read quickly coupled with a fan system that isn't up to par is this not a recipie for disaster?
sorry, i'll run them but personally i do not trust them. i put them to the test and they failed.
cheers
what is your take on my experience?
if the clutch fans are to be so great then why didn't a brand new one work properly?
then again how many problems related to overheating could be fan related?
if the tempurature gauges in the land cruisers have a resister built into them so they do not read quickly coupled with a fan system that isn't up to par is this not a recipie for disaster?
sorry, i'll run them but personally i do not trust them. i put them to the test and they failed.
cheers
Used to do roads like the coquihalla on a daily basis (bombi summit, Nancy Greene, Trail to Rossland), never a problem with the clutch fan. Solid link would be the best failsafe though. Perhaps you could elaborate on the specific problems with an electric setup? I don't trust any of the stock guages, slowly replacing them one by one, good point. They like to think they have mountains down here but...
